If the car is in otherwise good condition, and you're happy with it, then I can't see why you'd want to be rid.
If you had the props removed because of the noise, as opposed to you bought it like that and the story was the props were making noise, then you are likely to be able to reinstall the props OK.
The noise was almost certainly the support bearings, which are not expensive - although "cheap" ones will not last long at all. Get OEM decent ones.
Hopefully you kept the props and VCU !!!!!
However, before spending money on the bearings which you might not use, check the other components are OK to reinstate first.
First thing to check is whether you have 4 matching tyres - make and model. If you are running mismatched try make or model, it is risky running 4WD.
Next thing to check is the VCU. This is best done by installing the props (as-is) and doing the 1 wheel up test. Don't just go by the first couple of timings. If the props have been sitting for a while, do a good few to mix up the VCU contents. If the test is taking to long, you'll need a recon unit - as described above - and don't drive with the old VCU... remove the props again.
It is also advisable to do an oil change on the IRD, and also rear diff. If the old oil comes out with a metallicy sheen - then that is a sign of previous misuse (through mismatched tyres or overly stiff VCU) and the bearings are worn and may not be up to the task of being reinstated to 4WD. You can check on the Bell Engineering website for a recon IRD, but you are now talking more serious money to reinstate 4WD.
If you have disposed of your props, then you'll need to source a set with VCU and the bolt fixings to IRD & diff flanges and 4 bolts to mount the support bearings. You can budget on that and a recon VCU (you'll need 1 with the props to exchange) - but do the oil changes firs to make sure the other bits are OK and you know what money you are talking.
Also, if you had the props removed by a garage - make sure they left the pinion/flange on the IRD for the prop to bolt to - some times they remove them. Its possible they may also have removed the rear diff and most of the rear drive shafts - so once again, check they are there!
There's a lot listed there - but TBH if you're happy with the car, its a no-brainer - reinstate the props (its low cost and easy), but make sure the tyres, IRD and diff are OK first.
If you are unsure of the names/terms used above, simply ask. A good page to read, with info on the 1 wheel up test is...
https://www.landyzone.co.uk/land-rover/tests-new-freelander-1-owners-should-do-on-their-car.312863/